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CHEOPS
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CHEOPS

CHEOPS (CHaracterising ExOPlanets Satellite) ist eine gemeinsame Mission der ESA und der Schweiz, die darauf abzielt, die Größe bekannter Exoplaneten genau zu messen. Stellen Sie sich das Sonnensystem vor, in dem CHEOPS aus der Ferne beobachtet, wie Planeten wie kleine Murmeln vor einer Lampe vorbeiziehen und deren Helligkeit kurzzeitig „prägen“. Dieses kleine 32-cm-Teleskop nutzt die Transitmethode – es misst den winzigen Lichtabfall eines Sterns, wenn ein Planet davor vorbeizieht. Dies ermöglicht es, den Radius des Planeten mit extremer Präzision zu bestimmen. Während seiner 3,5-jährigen Mission hilft es zu klären, ob diese fernen Welten dicht und felsig wie die Erde oder gasförmig wie Jupiter sind.
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Latest news from CHEOPS

Low density super earth TOI-2211 b characterized as a potential hot water world
icon9. 10. 2026
iconSterne | Exoplaneten | Orangefarbener Zwerg | TESS | CHEOPS | Supererde
Image: Low density super earth TOI-2211 b characterized as a potential hot water world
The exoplanet TOI-2211 b is a super-Earth located on a close orbit around an orange dwarf star, completing one revolution every 3.09 days. Because it is positioned so close to its host star, it is subjected to intense radiation that often strips away light primordial atmospheres made of hydrogen and helium. The current analysis indicates that the mass and radius of the planet are not consistent with a simple bare rocky interior, nor with an atmosphere dominated by hydrogen. Instead, it is likely...
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CHEOPS observations reveal planetary densities and atmospheric evolution in V1298 Tau system
icon5. 7. 2026
iconSterne | Exoplaneten | CHEOPS | Junge Sternobjekte
Image: CHEOPS observations reveal planetary densities and atmospheric evolution in V1298 Tau system
CHEOPS observations of the young V1298 Tau system provide refined measurements of its innermost planets. The findings reveal distinct bulk densities, suggesting diverse atmospheric evolution for these young worlds. No past dynamical excitation is required....
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CHEOPS telescope helped precisely measure two-planet system TOI 1130
icon9. 7. 2024
iconSterne | Exoplaneten | CHEOPS
Image: CHEOPS telescope helped precisely measure two-planet system TOI 1130
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Sub-Neptune and super-Earth discovered orbiting a star HIP 113103 150 light years away
icon8. 9. 2023 (akzeptiert)
iconSterne | TESS | CHEOPS | Exoplanete
Image: Sub-Neptune and super-Earth discovered orbiting a star HIP 113103 150 light years away
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Two warm sub-Neptunes discovered transiting nearby K-type star HD 15906
icon7. 6. 2023 (akzeptiert)
iconSterne | TESS | CHEOPS | Exoplanete
Image: Two warm sub-Neptunes discovered transiting nearby K-type star HD 15906
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